Help with sharp 46d82u

[JXpress]

When plugged in the relay clicks on and off a few times then i get the power and opc blink once and then the green power blinks twice by itself. by reading the service manual i believe this is the "Initial communication from the main CPU is not received". I have the service manual but I've never dug this deep into elactronics before (i'm quite savvy and have worked with ac/dc voltage alot.) i have tested the power 12 pin "PH" pin going to the main board and this is the readings i'm getting when trying to power on:
1- 12.4v
2- 0
3- 0
4- 0
5- 0
6- 0
7- 21v
8- 21v
9- 0
10- 0
11- 28.6
12- 28.6
then i checked the 6 pin "PD" connected on the main board:
1- 5.6v
2- 5.9v
3- 0
4- 0
5- 10.1v
6- 0
i'm not sure if these numbers are good or not, most other boards i've seen are clearly labeled but this sharp one has no labeling on it, and i have like 14 main board schematics in the service manual i have lol. any help is greatly appreciated and sorry for all my noobness

[budm]

Re: Help with sharp 46d82u

Without the pin names for all those pins with the Voltage readings, no way we can tell what they mean., is the other end of the connector that goes to another board has label for the pins?
The more details you provide the better help you will get.
We are doing remote troubleshooting without having the unit in front of us to kook at, so please provide good clear pictures of the boards and the whole back side of the TV showing all the boards.

[JXpress]

Re: Help with sharp 46d82u

no the other end does not have any markings, although i have not taking the main board out of the unit to see the back of it but i pulled the power board out and it has no markings. i have attached some pics of the rear of the unit, the main board, the power board and also the pins between both of them i checked for voltage at.